Karen Sim is the editor of such acclaimed films as the Emmy Award-winning documentaries Juliard (American Masters, PBS) and Burden of Innocence (Frontline, PBS). Sim edited director Liz Garbus’ documentary Coma (Moxie Firecracker Films, HBO), which premiered at the Full Frame Film Festival, and Garbus’ feature documentary exploring the state of free speech in America, Shouting Fire: Stories from The Edge of Free Speech, which premiered at the 2009 Sundance Film Festival before showing on HBO. Sim has worked with filmmakers as diverse as D.A. Pennebaker, Ofra Bikel, and Maro Chermayeff.

Her other work include the acclaimed Nothing Left Unsaid: Gloria Vanderbilt and Anderson Cooper, Back on Board: Greg Louganis, and Watchers of the Sky.